[Rendering] iOS Accessibility not following correct order

Target Platforms

iOS
SDK Version

Source code from commit
Application Name

Cisco Webex
Problem Description

When using Voice Over, the logical flow is not in order. The expected flow would be, Right -> Left and Top -> Bottom. The flow is diverged especially when a Column is encountered The behaviour of FactSet is different too, It reads all the titles first (vertically) and then all the values. The expected would be like title -> value (horizontally)
Screenshots

ezgif com-gif-maker
Card JSON

// There are 2 example JSONs here
// First card JSON
{
    "$schema": "http://adaptivecards.io/schemas/adaptive-card.json",
    "type": "AdaptiveCard",
    "version": "1.2",
    "body": [
        {
            "type": "TextBlock",
            "text": "Upgrade Schema Support to 1.2",
            "weight": "Bolder",
            "size": "Medium"
        },
        {
            "type": "ColumnSet",
            "columns": [
                {
                    "type": "Column",
                    "width": "auto",
                    "items": [
                        {
                            "type": "Image",
                            "url": "https://i.postimg.cc/ht5NHX42/Screen-Shot-2020-04-29-at-1-42-1.png",
                            "size": "Small",
                            "style": "Person"
                        }
                    ]
                },
                {
                    "type": "Column",
                    "width": "stretch",
                    "items": [
                        {
                            "type": "TextBlock",
                            "text": "Carmen Harrison",
                            "weight": "Bolder",
                            "wrap": true
                        },
                        {
                            "type": "TextBlock",
                            "spacing": "None",
                            "text": "Created {{DATE(2020-02-14T06:08:39Z, SHORT)}}",
                            "isSubtle": true,
                            "wrap": true
                        }
                    ]
                }
            ]
        },
        {
            "type": "TextBlock",
            "text": "1.2 contains the following features:\nRich text blocks, Background images, Action set buttons, and Container styles.",
            "wrap": true
        },
        {
            "type": "FactSet",
            "facts": [
                {
                    "title": "Board:",
                    "value": "Buttons and Cards"
                },
                {
                    "title": "List:",
                    "value": "Backlog"
                },
                {
                    "title": "Assigned to:",
                    "value": "Carmen Harrison"
                },
                {
                    "title": "Due date:",
                    "value": "Feb 25, 2020"
                }
            ]
        }
    ],
    "actions": [
        {
            "type": "Action.ShowCard",
            "title": "Set due date",
            "card": {
                "type": "AdaptiveCard",
                "body": [
                    {
                        "type": "Input.Date",
                        "id": "dueDate"
                    }
                ],
                "actions": [
                    {
                        "type": "Action.Submit",
                        "title": "OK"
                    }
                ],
                "$schema": "http://adaptivecards.io/schemas/adaptive-card.json"
            }
        },
        {
            "type": "Action.ShowCard",
            "title": "Comment",
            "card": {
                "type": "AdaptiveCard",
                "body": [
                    {
                        "type": "Input.Text",
                        "id": "comment",
                        "isMultiline": true,
                        "placeholder": "Enter your comment"
                    }
                ],
                "actions": [
                    {
                        "type": "Action.Submit",
                        "title": "OK"
                    }
                ],
                "$schema": "http://adaptivecards.io/schemas/adaptive-card.json"
            }
        }
    ]
}

// Second JSON
{
   "$schema":"http://adaptivecards.io/schemas/adaptive-card.json",
   "actions":[
      {
         "card":{
            "actions":[
               {
                  "data":{
                     "FoodChoice":"Steak"
                  },
                  "title":"OK",
                  "type":"Action.Submit"
               }
            ],
            "body":[
               {
                  "size":"medium",
                  "text":"How would you like your steak prepared?",
                  "type":"TextBlock",
                  "wrap":true
               },
               {
                  "choices":[
                     {
                        "title":"Rare",
                        "value":"rare"
                     },
                     {
                        "title":"Medium-Rare",
                        "value":"medium-rare"
                     },
                     {
                        "title":"Well-done",
                        "value":"well-done"
                     }
                  ],
                  "id":"SteakTemp",
                  "style":"expanded",
                  "type":"Input.ChoiceSet"
               },
               {
                  "id":"SteakOther",
                  "isMultiline":true,
                  "placeholder":"Any other preparation requests?",
                  "type":"Input.Text"
               }
            ],
            "type":"AdaptiveCard"
         },
         "title":"Steak",
         "type":"Action.ShowCard"
      },
      {
         "card":{
            "actions":[
               {
                  "data":{
                     "FoodChoice":"Chicken"
                  },
                  "title":"OK",
                  "type":"Action.Submit"
               }
            ],
            "body":[
               {
                  "size":"medium",
                  "text":"Do you have any allergies?",
                  "type":"TextBlock",
                  "wrap":true
               },
               {
                  "choices":[
                     {
                        "title":"I'm allergic to peanuts",
                        "value":"peanut"
                     }
                  ],
                  "id":"ChickenAllergy",
                  "isMultiSelect":true,
                  "style":"expanded",
                  "type":"Input.ChoiceSet"
               },
               {
                  "id":"ChickenOther",
                  "isMultiline":true,
                  "placeholder":"Any other preparation requests?",
                  "type":"Input.Text"
               }
            ],
            "type":"AdaptiveCard"
         },
         "title":"Chicken",
         "type":"Action.ShowCard"
      },
      {
         "card":{
            "actions":[
               {
                  "data":{
                     "FoodChoice":"Vegetarian"
                  },
                  "title":"OK",
                  "type":"Action.Submit"
               }
            ],
            "body":[
               {
                  "size":"medium",
                  "text":"Would you like it prepared vegan?",
                  "type":"TextBlock",
                  "wrap":true
               },
               {
                  "id":"Vegetarian",
                  "title":"Please prepare it vegan",
                  "type":"Input.Toggle",
                  "valueOff":"notVegan",
                  "valueOn":"vegan"
               },
               {
                  "id":"VegOther",
                  "isMultiline":true,
                  "placeholder":"Any other preparation requests?",
                  "type":"Input.Text"
               }
            ],
            "type":"AdaptiveCard"
         },
         "title":"Tofu",
         "type":"Action.ShowCard"
      }
   ],
   "body":[
      {
         "text":"What color do you want? *(isMultiSelect:false, style:compact)*",
         "type":"TextBlock"
      },
      {
         "choices":[
            {
               "title":"Red",
               "value":"1"
            },
            {
               "title":"Green",
               "value":"2"
            },
            {
               "title":"Blue",
               "value":"3"
            }
         ],
         "id":"myColor",
         "isMultiSelect":false,
         "style":"compact",
         "type":"Input.ChoiceSet",
         "value":"1"
      },
      {
         "text":"What color do you want? *(isMultiSelect:false, style:expanded)*",
         "type":"TextBlock"
      },
      {
         "choices":[
            {
               "title":"Red",
               "value":"1"
            },
            {
               "title":"Green",
               "value":"2"
            },
            {
               "title":"Blue",
               "value":"3"
            }
         ],
         "id":"myColor2",
         "isMultiSelect":false,
         "style":"expanded",
         "type":"Input.ChoiceSet",
         "value":"1"
      },
      {
         "text":"What colors do you want? *(isMultiSelect:true, style:compact)*",
         "type":"TextBlock"
      },
      {
         "choices":[
            {
               "title":"Red",
               "value":"1"
            },
            {
               "title":"Green",
               "value":"2"
            },
            {
               "title":"Blue",
               "value":"3"
            }
         ],
         "id":"myColor3",
         "isMultiSelect":true,
         "style":"compact",
         "type":"Input.ChoiceSet",
         "value":"1,3"
      },
      {
         "text":"What colors do you want? *(isMultiSelect:true, style:expanded)*",
         "type":"TextBlock"
      },
      {
         "choices":[
            {
               "title":"Red",
               "value":"1"
            },
            {
               "title":"Green",
               "value":"2"
            },
            {
               "title":"Blue",
               "value":"3"
            }
         ],
         "id":"myColor4",
         "isMultiSelect":true,
         "style":"expanded",
         "type":"Input.ChoiceSet",
         "value":"1"
      },
      {
         "size":"medium",
         "text":"Your registration is almost complete",
         "type":"TextBlock",
         "weight":"bolder",
         "wrap":true
      },
      {
         "items":[
            {
               "actions":[
                  {
                     "data":{
                        "action":"approve",
                        "id":"_qkQW8dJlUeLVi7ZMEzYVw"
                     },
                     "style":"positive",
                     "title":"Approve",
                     "type":"Action.Submit"
                  },
                  {
                     "card":{
                        "actions":[
                           {
                              "data":{
                                 "action":"reject",
                                 "id":"_qkQW8dJlUeLVi7ZMEzYVw"
                              },
                              "title":"Send",
                              "type":"Action.Submit"
                           }
                        ],
                        "body":[
                           {
                              "id":"RejectCommentID",
                              "isMultiline":true,
                              "placeholder":"Please specify an appropriate reason for rejection.",
                              "type":"Input.Text"
                           }
                        ],
                        "type":"AdaptiveCard"
                     },
                     "style":"destructive",
                     "title":"Reject",
                     "type":"Action.ShowCard"
                  }
               ],
               "type":"ActionSet"
            }
         ],
         "type":"Container"
      },
      {
         "text":"What type of food do you prefer?",
         "type":"TextBlock",
         "wrap":true
      },
      {
         "imageSize":"medium",
         "images":[
            {
               "altText":"Steak cut with fries",
               "type":"Image",
               "url":"thumbnail://cardcontents/info?messageId=a9cf1190-cf2d-11eb-a40a-6f7e941d6ecf&contentIndex=0&width=600&height=600"
            },
            {
               "altText":"Fried chicken with lettuce",
               "type":"Image",
               "url":"thumbnail://cardcontents/info?messageId=a9cf1190-cf2d-11eb-a40a-6f7e941d6ecf&contentIndex=1&width=600&height=600"
            },
            {
               "altText":"Tofu topped with red sauce",
               "type":"Image",
               "url":"thumbnail://cardcontents/info?messageId=a9cf1190-cf2d-11eb-a40a-6f7e941d6ecf&contentIndex=2&width=600&height=600"
            }
         ],
         "type":"ImageSet"
      }
   ],
   "type":"AdaptiveCard",
   "version":"1.0"
}
Sample Code Language

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Sample Code
